From Wiktionary, the free dictionary
Borrowed from Albanian besa-besë.
besa-bes
- Albanian oath formula of alliance. I swear alliance!
- Cunia, Tiberius (2010) “besã § besa-bes”, in Dictsiunar a Limbãljei Armãneascã (in Aromanian), Constanța: Editura Cartea Aromãnã, page 194b